Pump.



No. 654,8". Patented luly 3|, |900.

T. STEBBINS.

PUMP.

.finalisation med qnt. 16, 1895 No Model.) 2 Sheets-Sheet l.

mi Norms Pneus cov. Puo'rauwm wAsmNGToN. n. cA

No. 654,8". Patented July 3l, |900.l T. sTEBBlNs.

PUMP.

(Application filed Oct. 16, 1895.) -clo Model.) 2 Sheets-Sheet 2.

| L I "1 I1|| I ffg e e w e fy P |i A I V J Illu ferritinn` STATESPATENT OFFICE.

TIMOTHY STEBBINS, OF DAVENPORT, IOWA, ASSIGN OR TO THE RED JACKETMANUFACTURING COMPANY, OF SAME PLACE.

PUMP.

SPECIFICATION yfoerlxiig part of Letters Patent No. 654,811, dated.11.15 31, 1900.

' Application led October 16, 1895. Serial No. 565,824.` (No model.)

To 1.5L zuwm it 'mag/concern.-

Be it known that I, TIMOTHY STEBBrNs, a citizen of the United States,"and a resident of Davenport,Scott county, Iowa, have invented certainnew and useful Improvements in Pumps, of whichthe following is a full,clear, and exact description, reference being had to the accompanyingdrawings and to the letters of reference marked thereon.

1o Heretofore the art of tubular well-pumps has been such thatparticularly in deep wells the lower cylinder was made to suit the sizeof the pipe it was secured-in-in other words, a two-inch cylinder wasused insa two-inch I5 pipe, a three-inch cylinder in a three=inch pipe,afour-inch cylinder in a four-inch pipe, ctc., and no matter what thediameter of the pipe thecylinder had to bemade with especial referencethereto. It is a well-known zo fact that the deeper thewell the less thediameter of cylinder. This is due to the great weight of water whichwould otherwise have to be lifted. Now in order to suspend the lowercylinder in place it has heretofore been customary to suspendan innerpipe from the pump-head and attach or secure the lower cylinder to itslower end. In this Way the lower cylinder could be made of any diameterdesired and the water be drawn therethrough 3o up through the said innerpipe without reference to outer casing of the well or its diameter.

The object of my invention is todispense with the necessity and greatcost of this inner pipe, to enable the lower cylinder to be in-V sertedfrom above and secured in any position desired in the well-casingin'such manner that said cylinder will supportany weight of water aboveit, and to so construct the locking devices of said lower cylinder thata cyl- 40 inder of any diameter, so long as it is less than the diameterof the pipe or well-casing, can be made to fit any size of said pipe orcasing. This I accomplish by means of an eX- pansion-head for the saidlower cylinder, the

expansive pressure of which can be regulated so as to hold the cylinderin place and said expansion-head being made only with reference tothesize ofthe tube or well-casing, the weight of water above it, andregardless of the diameter of the cylinder, substantially as hereinafterfullydescrib'ed, and as illustrated in the drawings, in which- Figure lis a side'view of a pump, showing the well-casing thereofin'cross-section and showing my invention in side elevation therein.Fig. 2 is a sideview of my improvements drawn to a larger scale than asshown in Fig.

1. Fig. 3 is a vertical transverse section therethrough. Fig. 4 is aperspective view of the upperend or depression-head of my 6o improvedadjustable lower cylinder, showing the key vfor turning thesameinterlocked with said head. Fig. 5 is a perspective View of saiddepression-head. Fig. 6 is a perspective view ofthe lower engaging endof the locking-key. Fig. 7 is a vertical transverse section through amodified construction of my improved lower cylinder. Fig. 8 is'avertical transverse section through a set of expansion rings and washerstherefor,taken on enlarged 7o scale; and Fig. 9 is a similar viewthrough a set of expansion-rings placed concentric to one another.

In the drawings, A represents the well-casing, in the lower end portionof which my improved lower cylinder is placed, and N represents theplunger-rod of the pump, with the bucket suitably secured to the lowerend thereof.

My improvement consists of a suitable 8o length of pipe or tubing of aless diameter than the well-casing within which it is placed and hasscrewed or otherwise secured to itslower end a dog-coupling L,having thespringdogs d secured and depending from its lower 8 5 end. Thisdog-coupling L has an annular flange projecting from its innercircumference,which restricts the opening therethrough and formsavalve-seat h for the puppet or lower valve c of the pump, andpreferably 9o below the valve-seat the ends of the downwardly-extendedloop-shaped dogs d are secured diametrically opposite each other. Theremay be three or more of these dogs. I prefer, however, to use bntvtwoand to arrange these at right angles to eachother, as shown in thedrawings.- The lateral spread of dogs d is such that they permitcylinder X to' be inserted down into the well-casing of the well, butwhen itis attempted to turn the roo headA of the cylinder (to which amore exf tended reference will hereinafter be had) said `dogs come incontact with the irregularities and protuberances of the bore ofthewell-tubing. and prevent the cylinder from turning.

. The upper portion of the tubular body of thelower cylinder Xnisscrew-threaded andY has screwed thereon a base-flangefWK, so calledbecause it has a circumferential flange projecting from about its centerof length, upon which is supported a lower ring D. This lower ring D.supports and is separated from an upper rubber ring D byadividingLwasher J, which latter consists of a ring of lmetal or" othersuitable material loosely surrounding the cylinder X, with acircumferential flange' of the same diameter as the base-flange K.'

The washer J rests upon the upper edges of ring D and has resting on itthe ring D.

Screwed onto the screw-threaded upper end of Vthe cylinder X after theexpansion-rings pression-head, I provide it with severalupward-projecting lugs c, which are located an equal distance apart andhave their upper ends overhang toward the center of the head;

I engage head I with a tubular key M, in-

. ser-ted yinto the well-tubing from above, said key being made as longas desired bylsimply coupling as many sections of pipe as may be deemednecessary to provide the requisite length to push the lower cylinder tothe desired depth and lock the same in position when it gets there.

The foot or grapple g of the key M consists of a suitable collar screwedunto the lower end of said tubular key, which has a bellshaped lowermouth, so as to increase its diameter to that of the circle inclosedwithin the upper ends of the lugs e of the compression-head. Thisbell-shaped mouth of the grapple is provided'with a series ofradiallyprojecting lugs h, corresponding in number to the lugs e of thecompression-head and likewise separated an equal distance apart. Nowwhen it is desired to turn the compressionhead the grapple is lowereduntil the bellshaped lower mouth of the same is confined within t-helugs e of the head, whereupon it is turned so that the lugs h bearagainst lugs e and'turn the compression-head, so as to expand the ringsVD and D'. In order that the grapple may be used to lift the cylinder aswell as lower it into place, I provide the lugs h with lateral'wings k,which extend a short v. distance on either side of said lugs andare ofsuch dimensions that when lugs hare turned to come Ainto contact withlugs e said wings 'erly turned.

come under the overhanging upper ends of lugs e of thecompressionfhead.`

In order to adapt my improved lower cylinder tosuit the diiere'nt sizesof well-casing, the rings D or D', or both, are increased in number,substantially as shown in Fig. 9. In this figure the two ringsD areshown to be concentric and are so arranged that one surrounds the other.Of course in order to do this it is necessary to employ a base-ilange Kand a compression-head I ot' such diameter that both ringsD will becompressed between the two when said compression-head is prop- I canavoid the 'necessity for changing the compression-head every time it isvdesired to adapt said rings .toa well-casing lofgreater diameter byemploying an extension-washer P, substantially as shown in Fig. 7. Inthis tign re of the drawings the said extension-washer is shown `aslocated between the upper edges of saidrings D and the compression-head,and the flange of said extension-washer is-of such diameter that itbearsdown upon the upper edge of said ring'D'. Not only can the numberof`rings D be increased, but likewise' the number of lower rings D can becorrespondingly increased. In this event it isV necessary that dividingwashers of dierentA diameter be substituted for each change of size inthe well-casing.

VI do not wish to be confined to the use of two concentric rubber rings,because it is obvious more may be employed, if desired. For example, Iwill say that if two expansion-rings are su thcient when expanded tosecurely holdthe lower cylinder in a :tive-inch casing with one hundredfeet of water above it it is'very probable that two rings would notsupport the cylinder with one hundred and fifty feet above it. It wouldbe necessary to add another concentric ring. Thus the numberofexpansion-rings depends upon fthe diameter of thewell-casing or pipe,to-

gether with the number ,of feet ofwater it will have to support. It ispossible that a three-hundred-foot well with a five-inch Wellcasingwould require five or six of said concentric packing-rings. Iwish to bel'understood as considering as my inventionfthe use of two or moreexpansion-rings in: conjunction with an `inserted lower cylinder forpump no matter how said; rings are'placed, concentric or otherwise.y

One thing which -I desire to emphasizeV in order to bringout thedistinction between my improvements and that which preceded it is thefact that a lower cylinder of4r any di 'ameter can be inserted in a wellcasing or tubing of any diameter. Therefore one size of lower cylindercan be used inconjunction with a number of well-casings of different diameters. The lvalue of such .improvement to the manufacturer and to theuser both in commercial and practical sense is inestima ble.

i Heretofore a specialsize of lower 'cylV inder had to bemade for eachsize of we1l IOO TIO

casing. If the user was removed some distance from the producer and thesize of cylinder was too small for a givensize wellcasing,inconvenience, delay, and expense was entailed before this (notuncommon) difiiculty could be overcome. By myinvention this objection isovercome. All that has to be done is to add or substitute a largerrubber ring, and of these there is alwaysa ready supply at hand. It isan axiom in the art of well-digging that the deeper thev well thesmaller the size of the lower cylinder. By my improvement as there is nolimit to the length of the pipe X the lower cylinder can be made thesmallest possible practical size and made to depend not only into thesmallest-size well-casing, but even below the same when for any reasonthe well-casing cannot be lowered farther down in the well.

Another very necessary feature to which it is desired to call attentionand which is important in and is confined to my invention is that byplacing the expansion-rings at or near the top of the lower cylinder thesuspension of the same (to which allusion has already been made) is madepossible. Sand and other materials and chemicals generated by thewater-such as sulphate of lime and sulphate of magnesia--cannot packaround the sides of the cylinder, between the saine and the well-tubing,and cement the same, so as to prevent its removal or its being pushedfarther down into the well, and the top of the cylinder, as well as thelower end, is steadied and centeredin the well, so as to always be inalinement with the plunger of the pump. In order to prevent theexpansion-rings D and D from slipping inward toward the cylinder whenthe compression-head is turned so as to expand them, the dividing-washeris made shape in cross-section, the baseiiange and extension washer aremade L shape in cross-section, and the engaging annular edges of thecompression-head are rabing its upper portion screw-threaded, a staitionary circumferential base-flange surrounding the same, acompression-head engaging the screw-threaded portion of said cylinder,two expansible rings between said flange and head for suspending saidcylinder within said well-tubing, a friction-washer between saidexpansible rings, and devices for holding the cylinder stationary duringthe expanding of said rings. Y

2. In a Vpump the combination with the well-tubing, the plunger-rod, andthe bucket on the lower end thereof, of the cylinder consisting of asuitable length of tube of less diameter than the bore of saidwell-tubing having its upper portion screw-threaded, a circumferentialflange surrounding said cylinder, a compression-head engaging thescrewthreaded portion of the same, having two or more lugs projecting uptherefrom, the tops of which overhang toward the center thereof, anexpansion-ring between said'iiange and head, devices for preventing saidcylinder from turning during the expansion of said rings, and a grapplehaving lugs projecting from its circumference which is provided withWings, as and for the purpose set forth.`

TIMOTHY sTEBBiNs.

